Q.tree lilies
Do tree lilies require to be planted in a pot or restricted area to stop roots from spreading? Just planted 3 bulbs in border but not sure of their success this way. Have a magnificent lily growing at edge of patio with shingle over top.
Downtoearthdigs
Answered on May 1, 2016
They should not become invasive, so there is no reason to restrict their roots.
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